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• Can I access an iframe of the same domain in a separate window?

  - by jozecuervo

  How can I detect the presence of and then call a function on a frame that is already loaded in one tab (my iframed facebook app) from a page being loaded in a new tab (from an ad-served link). It seems most examples focus on parent/child iframe communication. In this case, a link will be served from Google Ad Manager, which only allows _top or _blank to be targeted. I want to pass an id through the ad click into the new page/tab on my domain and then JS call over to the frame my app is in to switch state. Both frames are on my domain but not in the same document or window. Is this possible?

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• Get path to a file via flash

  - by jeffkolez

  I'm not a flash dev, but I'm turning to it to try and meet a requirement. I'm to allow a user to select a file on their computer, then pass it to my web application. I know it's not possible to do this using Javascript, hence wanting to use flash. First, is this possible? Second, can I get a pointer on how its done? To clarify: I'm just looking for the path to the file. I don't want to upload it.

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• JSP doPost getAtribute null value

  - by newbie123

  I want to pass value to servlet but I keep get null value. <jsp:useBean id="Helper" class="model.Registration" scope="request"/> <form action="/Project/Registration" method="post" enctype="multipart/form-data"> <input type="text" size="20" name="name" value="<%=Helper.getName()%>"> <input type="submit"> </form> protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { Registrationh2 = (Registration) request.getAttribute("Helper"); if(h2!=null){ System. out.println(h2.getName()); } else System. out.println("NULL"); } Is there anything wrong with my code?

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• bash check if value in list

  - by tkoomzaaskz

  I've got a script with a variable taken from command line parameters. I want to check if it's value is one of dev, beta or prod. I've got following code snippet: #!/usr/bin/env bash ENV_NAME=$1 echo "env name = $ENV_NAME" ENVIRONMENTS=('dev','beta','prod') if [[ $ENVIRONMENTS =~ $ENV_NAME ]]; then echo 'correct' exit else echo 'incorrect' exit fi When I run my script, it doesn't matter which parameters I pass: ./script.sh beta or ./script.sh or ./script.sh whatever, I always get correct echoed. What is wrong in my script?

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• Why is Java String indexOf failing?

  - by Binaryrespawn

  Hi all, this must be quite simple but I am having great difficulty. You see I am trying to find a string within another string as follows. e = input.indexOf("-->"); s = input.indexOf("<!--"); input = input.replace(input.substring(s, e + 3), " "); The integers e and s are returning -1 in that it was not found and this is causing the replace method to fail. The test string I am using is "Chartered Certified<!--lol--> Accountants (ACCA)". I tried to creat a new string object and pass in the string as an argument as follows e=input.indexOf(new String("<!--")); This yielded the same result. Any ideas ?

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• Java generic return tpye

  - by Colby77

  Hi, I'd like to write a method that can accept a type param (or whatever the method can figure out the type from) and return a value of this type so I don't have to cast the return type. Here is a method: public Object doIt(Object param){ if(param instanceof String){ return "string"; }else if(param instanceof Integer){ return 1; }else{ return null; } } When I call this method, and pass in it a String, even if I know the return type will be a String I have to cast the return Object. This is similar to the int param. How shall I write this method to accept a type param, and return this type?

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• Sharing state/changes across ViewModels

  - by joshperry

  I have an App which has a Tasks tab and a Projects tab. I decided to make a separate ViewModel for each of the tabs, TasksViewModel and ProjectsViewModel. The Tasks tab has a new task area with an associated project pulldown and the Projects tab (obviously) has a list of projects. What I'd like is for the pulldown on the Tasks tab to share the same collection as the Projects tab list so that any time I add or remove a project on the Projects tab the list on the Tasks tab is up to date automatically. This worked well with a single ViewModel but it was beginning to become quite unruly. Should I not have split into two ViewModels? Is there a common method of sharing data like this? Perhaps pass the same ObservableCollection<Project> into each of the ViewModels? Perhaps some type of notification back to the TasksViewModel along the lines of ICollectionChanged. Appreciate any insight/input!

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• How to name variables which are structs

  - by evilpie

  Hello, i often work on private projects using the WinApi, and as you might know, it has thousands of named and typedefed structs like MEMORY_BASIC_INFORMATION. I will stick to this one in my question, what still is preferred, or better when you want to name a variable of this type. Is there some kind of style guide for this case? For example if i need that variable for the VirtualQueryEx function. Some ideas: MEMORY_BASIC_INFORMATION memoryBasicInformation; MEMORY_BASIC_INFORMATION memory_basic_information; Just use the name of the struct non capitalized and with or without the underlines. MEMORY_BASIC_INFORMATION basicInformation; MEMORY_BASIC_INFORMATION information; Short form? MEMORY_BASIC_INFORMATION mbi; I often see this style, using the abbreviation of the struct name. MEMORY_BASIC_INFORMATION buffer; VirtualQueryEx defines the third parameter lpBuffer (where you pass the pointer to the struct), so using this name might be an idea, too. Cheers

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• PHP/Codeigniter processing a list with javascript

  - by user270797

  I have a list of items that the user can select. I want it to be more user friendly than standard checkboxes so I have seperate div's each with a unique id. When user clicks an item, I use javascript to display a tick on top of that item and change the style to show that it is highlighted. Im trying to work out how I can pass the list of id's when the form is submitted. Remember, if the user unticks an item, it should be removed from the list, I was thinking of using comma seperated values in a hidden text field but couldnt work out how to remove items from the start of the list if they were deselected

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• Connecting two DialogBoxes in GWT

  - by Apophenia Overload

  In my GWT project, I'm trying to get it so two DialogBoxes can pass information between each other. One of them holds a MapWidget, and when a button is pressed in the other DialogBox, the position information is received from that other DialogBox's MapWidget. Does anyone have any tips for how I should coordinate between having two different DialogBoxes show up? Should I wrap the code for the two in a Composite? Furthermore, is there an example anywhere of dealing with two DialogBoxes at once in GWT? For example, if I click outside of the two boxes, both should be dismissed. I'm wondering if there's a way to keep both of them in focus at once, so I can switch between the two without causing either to disappear.

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• Add Method to Built In Class

  - by Evorlor

  I am pretty sure this is not doable, but I will go ahead and cross my fingers and ask. I am trying to add a method to a built in class. I want this method to be callable by all of the built in class's subclasses. Specifically: I have a JButton, a JTextPane, and other JComponents. I want to be able to pass in a JDom Element instead of a Rectangle to setBounds(). My current solution is to extend each JComponent subclass with the desired methods, but that is a LOT of duplicate code. Is there a way I can write the following method just one time, and have it callable on all JComponent objects? Or is it required that I extend each subclass individually, and copy and paste the method below? public void setBounds(Element element) { this.setBounds(Integer.parseInt(element.getAttribute( "x").toString()), Integer.parseInt(element .getAttribute("y").toString()), Integer .parseInt(element.getAttribute("width").toString()), Integer.parseInt(element.getAttribute("height") .toString())); }

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• PHP inheriting/extending a particular instance of an Object

  - by delta9

  Is there any way to force PHP to extend an existing/particular (and for that matter, already instantiated) instance of an object? This imaginary code should explain what I am wondering: class Base { public $var; function __construct($var){ $this->var = $name; } } class Extender extends Base { function __construct($parent) { parent = $parent; } } $base = new Base('yay!'); $extender = new Extender($base); echo 'Extended base var value: '.$extender->var.'<br/>'; Output (would be): Extended base var value: yay! To be clear, I am wanting to instantiate an object that extends a PARTICULAR INSTANCE of another object, one that has already been instantiated. I am aware that I can pass a reference to an object to another object (via it's constructor function) and then add it as a property of the receiving object, I'm wondering if there is a real way to do this?

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• Check the cumulative status of onLoadInit in a for statement

  - by jonobr1

  In a setup like this is it possible to check the cumulative status of all onLoadInit? for(var i:Number = 0; i < limit; i++) { var mcLoader:MovieClipLoader = new MovieClipLoader(); var mclListener:Object = new Object(); mclListener.onLoadInit = function(mc:MovieClip) { trace(i + " is finished loading!"); } mcLoader.addListener(mclListener); mcLoader.loadClip(some_image_path, someMovieClip); } Initially I was thinking that I could pass an array of Boolean's, but I'm not really sure where to add that checkpoint, because a flash frame doesn't keep looping. Would I have to add it to an onEnterFrame()?

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• how to access a label form user control in Parent class ?

  - by haansi

  I have a class UserControlBase that inherits System.Web.UI.UserControl and my user controls inherit UserControlBase class. UserControlBase has some common functions that are used in all user controls. I want to put error display funtion to UserControlBase as well so that I may not have to declare and manage it in all user controls. Error will be displayed in some label in usercontrol. Issue is how to access label which is in usercontrol in UserControlBase in function ? I dont want to pass label as argument. Please guide me on this issue. thanks

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• Why Do Programmers Get So Invested in their Favorite Technologies?

  - by Pierreten

  I've noticed this culture surrounding Ruby where developers truly believe that they are somehow more gifted than developers of other languages, regardless of experience and talent (even when that isn't the case, I've met some extremely junior Ruby developers come up with some pretty basic constructs, and pass them off as some sort of revolutionary idea). The derision of strongly typed languages seems to be a common theme as well; regardless of its merits. Is there something particular to the Ruby syntax in general that is to account for this? Is there a sociological component to it?

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• Regarding Shell variable

  - by arav

  I need to call another shell script testarg.sh within my main script. This script testarg.sh has arguments ARG1 ,ARG2, ARG3. I need to call up the below way ./testarg.sh -ARG1 -ARG2 -ARG3 ARG1 and ARG3 argument Variables are mandatory ones. If its not passed to the main script then i quit. ARG2 is an optional one. If the ARG2 variable is not set with value or it's not defined then i need not pass it from main script.So i need to call up the below way ./testarg.sh -ARG1 -ARG3 If the value exist for the ARG2 Varibale then i need to call the below way ./testarg.sh -ARG1 -ARG2 -ARG3 Do i need to have a if else statement for checking the ARG2 variable is empty or null. Is there any other way to do it.

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• Global search box extension - how to make browser to start when suggestion picked.

  - by Ramps

  Hi, I'm implementing global search box extension (sth like SearchableDictionary sample in android sdk). Everything works fine - suggestions are displayed properly. Problem is that I want browser to start when user picks a suggestion. (each suggestion is a link) Columns of my cursor contain SearchManager.SUGGEST_COLUMN_INTENT_DATA, and I use that to pass http link. My searchable xml contains default intent action set to: android:searchSuggestIntentAction="android.intent.action.VIEW". But when user hits the suggestion, my application is started instead of browser. What am I missing? Regards!

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• How to set credential persistence permanent on Android

  - by doreamon

  My app has save login credential feature, so I store cookies for the next use after succeeding to sign in. However, after a time period, the session will be time out and cannot log in with the cookies any more. On iOS, after setting credential persistence to permanent, the app works nicely even after restarting the phone: [[challenge sender] useCredential:[NSURLCredential credentialWithUser:username password:password persistence:NSURLCredentialPersistencePermanent] forAuthenticationChallenge:challenge]; On Android, I cannot find out such kind of this option. Here is from my HttpHelper class: ((AbstractHttpClient) HttpHelper.client).getAuthSchemes().register("ntlm",new NTLMSchemeFactory()); NTCredentials creds = new NTCredentials(user, pass, "", domain); ((AbstractHttpClient) HttpHelper.client).getCredentialsProvider().setCredentials(AuthScope.ANY, creds); The server is SharePoint so I have to deal with ntlm authentication by following this instruction If you have idea, please let me know. Thank you.

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• Any way to avoid a filesort when order by is different to where clause?

  - by Julian

  I have an incredibly simple query (table type InnoDb) and EXPLAIN says that MySQL must do an extra pass to find out how to retrieve the rows in sorted order. SELECT * FROM `comments` WHERE (commentable_id = 1976) ORDER BY created_at desc LIMIT 0, 5 exact explain output: table select_type type extra possible_keys key key length ref rows comments simple ref using where; using filesort common_lookups common_lookups 5 const 89 commentable_id is indexed. Comments has nothing trick in it, just a content field. The manual suggests that if the order by is different to the where, there is no way filesort can be avoided. http://dev.mysql.com/doc/refman/5.0/en/order-by-optimization.html I also tried order by id as well as it's equivalent but makes no difference, even if I add id as an index (which I understand is not required as id is indexed implicitly in MySQL). thanks in advance for any ideas!

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• inter servlet communication

  - by mithun1538

  Hello everyone, I have two servlets: LoginServlet and MailServlet. LoginServlet queries a mysql table using jdbc to get a string(eMail). What I want is to forward this string to MailServlet which in turn will send an email to that e-mail ID sent by LoginServlet. My question is how do I call and send the variable eMail to MailServlet, from LoginServlet? I thought of creating an instance of the MailServlet as : MailServlet servlet = new MailServlet(); And then use the servlet object to call the function doGet() in MailServlet. But I am feeling that there is some error in this as this is not the right way to call a servlet. So how do I call and pass a variable to MailServlet?

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• Receive messages for derived types in MVVMLight

  - by Hrvoje

  Shouldn't this test pass: [TestMethod] public void derived_message_subscription() { bool handled = false; Messenger.Default.Register<GenericMessage<baseClass>>(this, true, (msg) => handled = true); Messenger.Default.Send(new GenericMessage<testClass>(new testClass())); Assert.IsTrue(handled); } public abstract class baseClass { } public class testClass : baseClass { } I have to receive all messages for classes that inherits from one base class. MVVMLight has bool property receiveDerivedMessagesToo in Register method, but it seems to me that it isn't working.

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• Force Decimal Regex

  - by babyangel86

  Hi, I'm looking for a regex or a way to format the NumberValidator so that only decimal places are allowed. The domain="real" allows you to put integer values, but I need to force the user to but in 2.0 if they want an integer. This is because they pass through a Castor mapping file, it complains if it gets an integer when it expects a decimal. I dont want to restrict the number of decimal places, just insist that there must be a point, and a number after it. Any help would be much appreciated.

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• I'm having a hard time wrapping my head around handling the Activity Lifecycle...

  - by kefs

  So it seems i've created a fatal flaw and coded an app before understanding/handling rotation/lifecycle events.. Currently, all of my code is in onCreate of each activity. I've read a lot of lifecycle tutorials online, including the official dev guide info, but i'm still having an almost unbelievably hard time trying to wrap my head around the rotation/lifecycle events/methods and when to use them correctly. For example, my app currently has an activity that opens the db, inserts a record, then closes the db.. if i rotate my screen on this activity, the data is re-entered into the db. Using the available lifecycle events (onPause(), onResume(), etc..), how would I prevent this db call from happening again? Would I have to pass a variable through the state saying that the db call has been done, and not to do it again? Thanks in advance..

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• how to add values in array

  - by nhoyti

  hi guys, i just want to ask help again. I've created a method to read values in gridview, i was able to get and read values from the gridview. The problem now, is how can i store the values inside an array and i want it to pass on the other page. here's the code i've created private void getrowvalues() { string combinedvalues; foreach (GridViewRow row in gvOrderProducts.Rows) { string prodname = ((Label)row.FindControl("lblProductName")).Text; string txtvalues = ((TextBox)row.FindControl("txtQuantity")).Text; combinedvalues = prodname + "|" + txtvalues; } } i want the result string combinedvalues to be put in an array or collection of strings which i can be access in other page. Is there a way to do it? Any inputs will be greatly appreciated. thanks!!

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• MVC - Sanitizing data, where?

  - by dierre

  I'm using CakePHP but it's a question about the MVC pattern. I have in my form the input-text for the tags (separated by commas). To add the tags I've created a Tag model method that basically check if the tag exists and then add the new tag or just a new unit in the tag counter (the Tag model has these fields: id, name, slug, count). In the controller I explode the tags field and pass one tag at a time. The question is: where do I sanitize data? In the controller or in the model method? I think it should be in the controller because that's where I explode but in term of reusability I think I should sanitize data in the model. What do you think?

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